CVE-2026-8796
CVSS 评分： 🟠 高危 8.1 (v3.1)
发布日期： 2026-05-31
来源： NVD
状态： Deferred
漏洞描述（中文）
Perl Sereal:😃ecoder 5.005 版本之前存在堆越界读取漏洞。恶意输入可导致 srl_read_object() 和 srl_read_hash() 函数在处理 COPY 标签时发生越界读取。
Description (EN)
Sereal:😃ecoder versions before 5.005 for Perl allow heap out-of-bounds read via crafted input.
In Perl/Decoder/srl_decoder.c, srl_read_object() and srl_read_hash() process a COPY tag, a back-reference whose target byte the decoder re-decodes as a fresh tag. When that target byte matches the SHORT_BINARY pattern (an inline string whose length is encoded in the low bits of the tag), the resulting read is not bounded to precede the COPY tag’s own offset and can run past the end of the input buffer. An attacker controlled COPY offset can land inside a previously decoded value rather than on a tag boundary, planting a byte that the decoder reads as a SHORT_BINARY tag and consuming up to 31 following bytes from the heap as a class name (OBJECT path) or hash key (HASH path).
参考链接
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自动同步自 NVD | 2026-06-02